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-rw-r--r--test/psych/test_scalar_scanner.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/test/psych/test_scalar_scanner.rb b/test/psych/test_scalar_scanner.rb
index cf0dfff6aa..1397020c88 100644
--- a/test/psych/test_scalar_scanner.rb
+++ b/test/psych/test_scalar_scanner.rb
@@ -87,5 +87,9 @@ module Psych
def test_scan_true
assert_equal true, ss.tokenize('true')
end
+
+ def test_scan_strings_starting_with_underscores
+ assert_equal "_100", ss.tokenize('_100')
+ end
end
end